Yes, grew them 2 seasons ago. Best to pull out when size of a tennis ball otherwise they'll become woody. You can try another one, Turnip Sweet Bell F1 - growing it for the second season - small, purple, bright green shoots, sweet, and no root splitting (caused by underwatering). Have a look at www.marshalls-seeds.co.uk .for the F1 turnip and more.

I have read that you can eat the turnip tops - cook like spinach perhaps? The leaves have to be young and if you want, apparently, the best from the turnips; harvest when between golf and tennis ball size. I guess if you are using them in a stew, cooked for some time, they could be larger.

I want to just slice and steam for a short time, so will be harvesting them quite small.

...and then again there is a carpaccio of turnip; sliced wafer thin, raw, with a dressing